Move call-flake.nix into libexpr

corepkgs/call-flake.nix

@@ -1,22 +0,0 @@
-locks: rootSrc: rootSubdir:
-
-let
-
-  callFlake = sourceInfo: subdir: locks:
-    let
-      flake = import (sourceInfo + "/" + subdir + "/flake.nix");
-
-      inputs = builtins.mapAttrs (n: v:
-        if v.flake or true
-        then callFlake (fetchTree (removeAttrs v.locked ["dir"])) (v.locked.dir or "") v.inputs
-        else fetchTree v.locked) locks;
-
-      outputs = flake.outputs (inputs // { self = result; });
-
-      result = outputs // sourceInfo // { inherit inputs; inherit outputs; inherit sourceInfo; };
-    in
-      assert flake.edition == 201909;
-
-      result;
-
-in callFlake rootSrc rootSubdir (builtins.fromJSON locks).inputs

corepkgs/local.mk

@@ -1,8 +1,7 @@
 corepkgs_FILES = \
   unpack-channel.nix \
   derivation.nix \
-  fetchurl.nix \
-  call-flake.nix
+  fetchurl.nix
 
 $(foreach file,config.nix $(corepkgs_FILES),$(eval $(call install-data-in,$(d)/$(file),$(datadir)/nix/corepkgs)))